Synopsis

Description

The sccs command is a comprehensive, straightforward front end to the various
utility programs of the Source Code Control System (SCCS).

sccs applies the indicated subcommand to the history file associated with each
of the indicated files.

The name of an SCCS history file is derived by prepending the
`s.' prefix to the filename of a working copy. The sccs command
normally expects these `s.files' to reside in an SCCS subdirectory. Thus, when you
supply sccs with a file argument, it normally applies the subcommand to
a file named s.file in the SCCS subdirectory. If file is a
path name, sccs looks for the history file in the SCCS subdirectory
of that file's parent directory. If file is a directory, however, sccs
applies the subcommand to every s.file file it contains. Thus, the command:

example% sccs get program.c

would apply the get subcommand to a history file named SCCS/s.program.c, while
the command:

example% sccs get SCCS

would apply it to every s.file in the SCCS subdirectory.

Options for the sccs command itself must appear before the subcommand argument.
Options for a given subcommand must appear after the subcommand argument.
These options are specific to each subcommand, and are described along with the
subcommands themselves (see Subcommands below).

Running Setuid

The sccs command also includes the capability to run ``setuid'' to provide
additional protection. However, this does not apply to subcommands such as
sccs-admin(1), since this would allow anyone to change the authorizations of the
history file. Commands that would do so always run as the
real user.

Options

The following options are supported:

/usr/bin/sccs

-drootprefix

/usr/xpg4/bin/sccs

-drootprefix

Defines the root portion of the path name for SCCS history files. The default root portion is the current directory. rootprefix is prepended to the entire file argument, even if file is an absolute path name. -d overrides any directory specified by the PROJECTDIR environment variable (see ENVIRONMENT VARIABLES below).

/usr/bin/sccs

-psubdir

/usr/xpg4/bin/sccs

-psubdir

Defines the (sub)directory within which a history file is expected to reside. SCCS is the default. (See EXAMPLES below).

-r

Runs sccs with the real user ID, rather than set to the effective user ID.

Operands

The following operands are supported:

file

a file passed to subcommand

option

an option or option-argument passed to subcommand

subcommand

one of the subcommands listed in Usage

Usage

The usage for sccs is described below.

Subcommands

Many of the following sccs subcommands invoke programs that reside in /usr/bin.
Many of these subcommands accept additional arguments that are documented in the
reference page for the utility program the subcommand invokes.

admin

Modify the flags or checksum of an SCCS history file. Refer to sccs-admin(1) for more information about the admin utility. While admin can be used to initialize a history file, you might find that the create subcommand is simpler to use for this purpose.

/usr/bin/sccs

cdc-rsid [ -y[comment]]

/usr/xpg4/bin/sccs

cdc-rsid | -rsid [ -y[comment]]

Annotate (change) the delta commentary. Refer to sccs-cdc(1). The fix subcommand can be used to replace the delta, rather than merely annotating the existing commentary.

-rsid | -rsid

Specify the SCCS delta ID (SID) to which the change notation is to be added. The SID for a given delta is a number, in Dewey decimal format, composed of two or four fields: the release and level fields, and for branch deltas, the branch and sequence fields. For instance, the SID for the initial delta is normally 1.1.

-y“[comment]”

Specify the comment with which to annotate the delta commentary. If -y is omitted, sccs prompts for a comment. A null comment results in an empty annotation.

/usr/bin/sccs

check [-b] [-u[username] ]

/usr/xpg4/bin/sccs

check [-b] [-u [username] | -U ]

Check for files currently being edited. Like info and tell, but returns an exit code, rather than producing a listing of files. check returns a non-zero exit status if anything is being edited.

-b

Ignore branches.

-u[username] | -u [ username] | -U

Check only files being edited by you. When username is specified, check only files being edited by that user. For /usr/xpg4/bin/sccs, the -U option is equivalent to -u <current_user>.

clean [ -b ]

Remove everything in the current directory that can be retrieved from an SCCS history. Does not remove files that are being edited.

-b

Do not check branches to see if they are being edited. `clean-b' is dangerous when branch versions are kept in the same directory.

Create (initialize) history files. create performs the following steps:

Renames the original source file to ,program.c in the current directory.

Create the history file called s.program.c in the SCCS subdirectory.

Performs an `sccs get' on program.c to retrieve a read-only copy of the initial version.

deledit [-s] [-y[comment] ]

Equivalent to an `sccs delta' and then an `sccs edit'. deledit checks in a delta, and checks the file back out again, but leaves the current working copy of the file intact.

-s

Silent. Do not report delta numbers or statistics.

-y[comment]

Supply a comment for the delta commentary. If -y is omitted, delta prompts for a comment. A null comment results in an empty comment field for the delta.

delget [-s] [-y[comment] ]

Perform an `sccs delta' and then an `sccs get' to check in a delta and retrieve read-only copies of the resulting new version. See the deledit subcommand for a description of -s and -y. sccs performs a delta on all the files specified in the argument list, and then a get on all the files. If an error occurs during the delta, the get is not performed.

delta [-s] [-y[comment] ]

Check in pending changes. Records the line-by-line changes introduced while the file was checked out. The effective user ID must be the same as the ID of the person who has the file checked out. Refer to sccs-delta(1). See the deledit subcommand for a description of -s and -y.

/usr/bin/sccs

diffs [-C] [-I] [-cdate-time] [-rsid] diff-options

/usr/xpg4/bin/sccs

diffs [-C] [-I] [-cdate-time | -cdate-time ]

[-rsid | -rsid] diff-options

Compare (in diff(1) format) the working copy of a file that is checked out for editing, with a version from the SCCS history. Use the most recent checked-in version by default. The diffs subcommand accepts the same options as diff.

Any -r, -c, -i, -x, and -t options are passed to subcommand get. A -C option is passed to diff as -c. An -I option is passed to diff as -i.

-cdate-time | -cdate-time

Use the most recent version checked in before the indicated date and time for comparison. date-time takes the form: yy[mm[dd[ hh[mm[ss] ] ] ] ]. Omitted units default to their maximum possible values; that is -c7502 is equivalent to -c750228235959.

-rsid | -rsid

Use the version corresponding to the indicated delta for comparison.

edit

Retrieve a version of the file for editing. `sccs edit' extracts a version of the file that is writable by you, and creates a p.file in the SCCS subdirectory as lock on the history, so that no one else can check that version in or out. ID keywords are retrieved in unexpanded form. edit accepts the same options as get, below. Refer to sccs-get(1) for a list of ID keywords and their definitions.

enter

Similar to create, but omits the final `sccs get'. This can be used if an `sccs edit' is to be performed immediately after the history file is initialized.

/usr/bin/sccs

fix-rsid

/usr/xpg4/bin/sccs

fix-rsid | -rsid

Revise a (leaf) delta. Remove the indicated delta from the SCCS history, but leave a working copy of the current version in the directory. This is useful for incorporating trivial updates for which no audit record is needed, or for revising the delta commentary. fix must be followed by a -r option, to specify the SID of the delta to remove. The indicated delta must be the most recent (leaf) delta in its branch. Use fix with caution since it does not leave an audit trail of differences (although the previous commentary is retained within the history file).

/usr/bin/sccs

get [-ekmps] [-Gnewname] [-cdate-time] [-r[sid] ]

/usr/xpg4/bin/sccs

get [-ekmps] [-Gnewname | -Gnewname]

[-cdate-time | -cdate-time] [-rsid | -rsid]

Retrieve a version from the SCCS history. By default, this is a read-only working copy of the most recent version. ID keywords are in expanded form. Refer to sccs-get(1), which includes a list of ID keywords and their definitions.

-cdate-time | -cdate-time

Retrieve the latest version checked in prior to the date and time indicated by the date-time argument. date-time takes the form: yy[mm[dd[ hh[mm[ss] ] ] ] ].

-e

Retrieve a version for editing. Same as sccs edit.

-Gnewname | -Gnewname

Use newname as the name of the retrieved version.

-k

Retrieve a writable copy but do not check out the file. ID keywords are unexpanded.

-m

Precede each line with the SID of the delta in which it was added.

-p

Produce the retrieved version on the standard output. Reports that would normally go to the standard output (delta IDs and statistics) are directed to the standard error.

-rsid | -rsid

Retrieve the version corresponding to the indicated SID. For /usr/bin/sccs, if no sid is specified, the latest sid for the specified file is retrieved.

-s

Silent. Do not report version numbers or statistics.

sccs-helpmessage-code|sccs-command

sccs-helpstuck

Supply more information about SCCS diagnostics. sccs-help displays a brief explanation of the error when you supply the code displayed by an SCCS diagnostic message. If you supply the name of an SCCS command, it prints a usage line. sccs-help also recognizes the keyword stuck. Refer to sccs-help(1).

/usr/bin/sccs

info [-b] [-u[username] ]

/usr/xpg4/bin/sccs

info [-b] [-u [ username] | -U]

Display a list of files being edited, including the version number checked out, the version to be checked in, the name of the user who holds the lock, and the date and time the file was checked out.

-b

Ignore branches.

-u[username] | -u [username] | -U

List only files checked out by you. When username is specified, list only files checked out by that user. For /usr/xpg4/bin/sccs, the -U option is equivalent to -u <current_user>.

print

Print the entire history of each named file. Equivalent to an `sccs prs-e' followed by an `sccs get-p-m'.

/usr/bin/sccs

prs [-el] [-cdate-time] [-rsid]

/usr/xpg4/bin/sccs

prs [-el] [-cdate-time | -cdate-time] [-rsid | -rsid]

Peruse (display) the delta table, or other portion of an s. file. Refer to sccs-prs(1).

Environment Variables

See environ(5) for descriptions of the following environment variables that affect the
execution of sccs: LANG, LC_ALL, LC_CTYPE, LC_MESSAGES, and NLSPATH.

PROJECTDIR

If contains an absolute path name (beginning with a slash), sccs searches for SCCS history files in the directory given by that variable.

If PROJECTDIR does not begin with a slash, it is taken as the name of a user, and sccs searches the src or source subdirectory of that user's home directory for history files. If such a directory is found, it is used. Otherwise, the value is used as a relative path name.